Abstract:
Measurement method where a code projection which is dependent on a three-dimensional position of a code carrier relative to a sensor arrangement is generated on a sensor arrangement, and at least part of the code projection is captured. An angular position of the code carrier with reference to the defined axis of rotation is ascertained and a current measurement position of the measurement component relative to a base is determined, wherein, a position value for at least one further degree of freedom of the code carrier relative to the sensor arrangement is ascertained on the basis of the code projection and is taken into account to determine the current measurement position, and a relative position of the connecting element with respect to the holder and/or the deformation thereof is determined from the position value in the form of a change in shape or size.
Abstract:
The invention relates to a tilt sensor for a device, comprising a tank receiving a flowable medium, wherein the position of the medium relative to the tank depends on the tilt, and the tank comprises a polygonal, in particular triangular, or an elliptical, in particular circular base, a source of electromagnetic radiation for generating projections of at least one part of a boundary of the medium, at least two detectors for detecting one of the projections, respectively, and for converting same into signals, wherein the detectors each comprise a detecting direction and the detecting directions of the detectors are disposed at angles to each other, and further comprising an analysis unit for determining the tilt in two axes from the signals of the at least two detectors, wherein the tilt is determined jointly for the two axes from a combination of the signals.
Abstract:
An optoelectronic position measurement device having a code carrier that carries at least one optically registered position code and that is illuminated with optical radiation from a radiation source. At least one portion of the optical radiation is registered by at least one registration element, by means of which a signal dependent on the position code can be created and a position of the code carrier relative to the registration element can thus be registered. the code carrier is movable relative to the registration element with a degree of freedom. the optical radiation couples into the code carrier and is guided at least partially in a beam path in the interior of the code carrier lying in the extension level of the code carrier. The decoupling of the optical radiation occurs in a decoupling zone such that the registration element is illuminated by a substantially homogenous intensity distribution.
Abstract:
A tilt sensor has a source for optical radiation, a pattern support having an optically effective pattern for the passage of the optical radiation generated by the source, a tilt-sensitive unit downstream of the pattern support in the direction of propagation of the radiation, and a projection area for the incidence of the radiation generated by the source and passing through the pattern support and the tilt-sensitive unit, wherein the source is in the form of a pattern support.
Abstract:
The invention relates to a calibration method that can be carried out without a reference system for an angle measuring device having a code carrier carrying an absolute position code, and at least two reading heads comprising a fixed, known angle position at an angular distance, wherein the code carrier can be rotated relative to the reading heads, and different angle positions of the code carrier relative to the reading heads can thus be captured. Angle position values of the reading heads in an angular setting are determined and angular error is determined, which are repeated. And, a mathematical analysis method is performed, including determining the parameters of a mathematical function quantifying the angular error, and determining calibration parameters as parameters of the quantifying mathematical function or as a correction or code table derived from the parameters.
Abstract:
The invention relates to a calibration method that can be carried out without a reference system for an angle measuring device having a code carrier carrying an absolute position code, and at least two reading heads comprising a fixed, known angle position at an angular distance, wherein the code carrier can be rotated relative to the reading heads, and different angle positions of the code carrier relative to the reading heads can thus be captured. Angle position values of the reading heads in an angular setting are determined and angular error is determined, which are repeated. And, a mathematical analysis method is performed, including determining the parameters of a mathematical function quantifying the angular error, and determining calibration parameters as parameters of the quantifying mathematical function or as a correction or code table derived from the parameters.
Abstract:
An optoelectric angle-measuring device according to the invention has a code carrier having a position code (C1) which can be detected optically as well as a scanning device in the form of a light-sensitive row or area for detecting the position code (C1) and generating a position-dependent scanning signal. The scanning device which is in the form of a scanning film (F1), in particular, surrounds the code carrier or the code carrier essentially completely surrounds the scanning device along a circumference. This provides an extremely accurate angle-measuring device by virtue of the fact that a large part of the position code (C1), in particular even the entire position code (C1), can be detected.
Abstract:
In a method according to the invention for the accurate determination of an angle of rotation (w) about an axis (a), at least a part of a plurality of pattern elements (5, ..., 13) arranged around a pattern center (4), a multiplicity of which are arranged one behind the other in a rotation, is at least partly focused by optical beams on a multiplicity of detector elements (2) of an optical detector (1) which are arranged in series. The pattern elements (5, ..., 13) are arranged on a rotating body (3) which is connected to the detector (1) so as to be rotatable about the axis (a). Positions (p) of the focused pattern elements are resolved by the detector elements (2) of one and the same detector (1). In a first step, effects of an eccentricity (e) of the pattern center (4) relative to the axis (a) on the determination of an angle of rotation are computationally determined from resolved positions (p) of at least one pattern element (5, ..., 13). In a second step, the angle of rotation (w) is accurately determined from the resolved positions (p1, p2, p3) of pattern elements (5, 6, 7) arranged one behind the other taking into account the effects determined.
Abstract:
The invention relates to a tilt sensor for a device, comprising a tank receiving a flowable medium, wherein the position of the medium relative to the tank depends on the tilt, and the tank comprises a polygonal, in particular triangular, or an elliptical, in particular circular base, a source of electromagnetic radiation for generating projections of at least one part of a boundary of the medium, at least two detectors for detecting one of the projections, respectively, and for converting same into signals, wherein the detectors each comprise a detecting direction and the detecting directions of the detectors are disposed at angles to each other, and further comprising an analysis unit for determining the tilt in two axes from the signals of the at least two detectors, wherein the tilt is determined jointly for the two axes from a combination of the signals.
Abstract:
A measuring method for determining a measurement position of a probe element 6 can include using a coordinate measuring machine 1 having a base and members that can be moved relative to the base and relative to each other, wherein one of the members, as the probe member TG, comprises a probe element 6, so that the probe element 6 can move freely within a prescribed volume of space, wherein the measurement position is captured by the probe element 6, a measurement variable set is taken by measuring measurement variables linked to a measurement position of the members, wherein the measurement position is determined by a relative location of the members to each other and of at least one of the members to the base, and the measurement position is determined relative to the base.